Authorities have released the names of the men killed Friday in an apparent flash fire inside the tank of a tugboat they were working on at V. T. Halter Marine in Moss Point.

Jackson County Coroner Vicki Broadus identified the two as 52-year-old Dwight Monroe Moss Point and 25-year-old Alex Caballera, who was living in Pascagoula.

The Sun Herald reports Monday that information was not available on the names and medical conditions of two other men severely injured in the same accident and who were being treated at the burn center at South Alabama Medical Center in Mobile.

Halter Marine CEO William B. Skinner said both the Occupational Safety and Health Administration and Halter’s in-house safety and environmental group are investigating the accident.